Last night, when I got home from work, I noticed this lying
amidst the moss...

I thought, "Oh nooooo!! Some resident has makan'd my
shrimp!!"
But on closer scrutiny, if it was really makan'd, there'd be
carnage and it wouldn't be this neat!
Then, I saw my two shrimps nestled comfortably amidst the moss
and the fake plant leaves. So I realised that oooooh... the
bees' knees... one shrimp has moulted!! 
I was bewildered and soooo ecstatic when Pinky sms'd to say that
only safe and happy shrimps will moult!
And now, I'm sooo inspired to expand my residents' territory by
getting a larger tank, at least four times larger! 
When my residents are happy, I'm happy!